Home / 39,440.53-54,430.14-21,537.20

Finding the Fourth Proportional to 39,440.53, 54,430.14 and 21,537.20

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Solution

The fourth proportional to 39,440.53, 54,430.14 and 21,537.20 is: 29,722.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,440.53 : 54,430.14 = 21,537.20 : x
  2. Step 2: Convert to fraction form
    39,440.53/54,430.14 = 21,537.20/x
  3. Step 3: Cross multiply
    39,440.53x = 54,430.14 × 21,537.20
  4. Step 4: Simplify right side
    39,440.53x = 1,172,272,811.21
  5. Step 5: Solve for x
    x = 1,172,272,811.21/39,440.53
  6. Step 6: Final answer
    x = 29,722.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.